Enum NeoError 

pub enum NeoError {
    InvalidOperation,
    InvalidArgument,
    InvalidType,
    OutOfBounds,
    DivisionByZero,
    Overflow,
    Underflow,
    NullReference,
    InvalidState,
    Custom(String),
}

Neo N3 Error type

Represents all possible error conditions that can occur during Neo N3 smart contract execution.

Variants

InvalidOperation

Operation is not valid in the current context

InvalidArgument

Argument has an invalid value or type

InvalidType

Type mismatch encountered during execution

OutOfBounds

Index or offset is out of valid bounds

DivisionByZero

Attempted division by zero

Overflow

Arithmetic overflow occurred

Underflow

Arithmetic underflow occurred

NullReference

Dereferenced a null or invalid reference

InvalidState

Internal state is invalid or corrupted

Custom(String)

Application-specific error with custom message

Implementations

impl NeoError

pub fn new(message: &str) -> NeoError

Creates a new custom error with the given message.

Examples

use neo_types::NeoError;

let err = NeoError::new("Custom error message");

pub fn message(&self) -> &str

Returns the error message if this is a custom error, otherwise returns a generic description.

pub fn as_str(&self) -> &'static str

Returns a static string description of the error variant.

Trait Implementations

impl Clone for NeoError

fn clone(&self) -> NeoError

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for NeoError

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Display for NeoError

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl PartialEq for NeoError

fn eq(&self, other: &NeoError) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for NeoError

impl StructuralPartialEq for NeoError